Conducting AC interference survey (Pre and Post) and SSD installation along with Zn grounding cells at HT Crossings in Barauni-Kanpur Pipeline in the state of Group A (Bihar and Jharkhand)

Amount

Conducting AC Interference survey in BIHAR

Conducting post SSD installation AC interference survey, to detect presence of any AC voltage(induced owing to proximity of any HT transmission line (33 KV and above) crossing or running parallel within a distance of 20 M from the pipeline alignment as per approved procedure. The work includes all tools, tackles, consumables etc. all complete, required for survey / test as deemed necessary and as per the directions of the site engineer / Engineer-in-Charge. Note : Post SSD installation AC interference survey shall be done at respective TLP by connecting data logger to maintain record for minimum 24 hours. The data to be submitted for each such TLP alongwith coloured graph and recommendations.

Conducting pre & post AC interference survey, to detect presence of any AC voltage(induced owing to proximity of any HT transmission line(>33kV) crossing or running parallel within a distance of 25 M from the pipeline alignment as per approved procedure. The work shall be completed in all respects including survey recommending mitigation measures & post mitigation survey. The work includes all tools, tackles, consumables etc. all complete, required for survey / test as deemed necessary and as per the directions of the site engineer / Engineer-in-Charge. Note : Post SSD installation AC interference survey shall be done at respective TLP by connecting data logger to maintain record for minimum 24 hours. The data to be submitted for each such TLP alongwith coloured graph and recommendations.

A. Test Lead Point : Supply, installation, testing & commissioning of Test Lead Point (TLP) fabricated MS Sheet (Thickness : 3 mm top/side/rear/front & 5 mm : Bottom plates) with hinged front door, Heavy Guage MS pipe 100 mm nominal diameter, Phenolic laminated terminal plate, brass terminal bolts, neoprene gasket for front door, vandal proof concealed lock, etc as per latest revision of Standard AFC drawing (9200-99900-404-603-02 : STD-483). The work includes providing requisite concrete foundation of 600 mm x 600 mm x 800 mm at site, including MS hard pipe for cable entry through foundation, erection of the TLP over concrete foundation, termination of cables to the brass terminal bolts inside TLP box, jointing the cables to pipe (using cad welding/ pin brazing technique), repairing the damage to coat & wrap (with coating repair etc.), back filling the trenches, cleaning the site, applying epoxy paint / powder coating etc. The work also includes supply, installation, laying & termination of all XLPE, Cu cables of required length (as per site conditions) and size, lugs etc. The work includes supply and fixing of a non-corrosive name plate containing the details like KM location, identification, TLP No., direction of flow, connection scheme, type etc., on the side of the TLP box, etc. The name plate shall also include the details of corrosion coupon wherever installed, all as per the direction and specification detailed in the document complete with tools, tackles & other necessary requirement. The work complete in all respects including all materials, tools, tackles, labour as per tender specifications, AFC drawings & directions of the Site Engineer/Engineer-In-Charge. B. Installation of solid state decoupling device as per specifications including terminating the cables in the TLP box with cable lugs, sealing material, laying of cable, testing & commissioning of Zinc anodes etc. all complete with required material, excavation, backfilling etc. as per specification and directions of Site Engineer/ Engineer-in-Charge. *NOTE: The SSD devices shall be provided by owner.

Zinc Anode for Hot spot protection : Supply, Installation , testing and commisioning of Zinc anode (minimum 10 Kg each) including its tail cable of size of 1c x 25 sq.mm. XLPE/ PVC insulated stranded copper cable of total length 10 meter including PVC cap, special back-fill material ( filled in cotton sack) with sealing compound complete in all respect including its excavations, back filling etc. as per specifications and drawings. The work complete in all respect shall include supply of all labour , tools etc. and shall be carried out as per the directions of the Site Engineer / Engineer-in-Charge and as per AFC drawings.

Preparation & installation of corrosion coupon from owner supplied coated pipe. which involves preparation of sample of size 2"x4", application of pipeline coating material on the coupon, soldering 6 sq. mm. cable with coupon, sealing the soldered joint with epoxy, positioning the coupon at the pipe line depth and with in a distance of 0.5 M from the pipeline inclusive of cable & terminating the cable in the TLP terminal. The corrosion coupons are to be installed with specified Test lead points for which prior approval to be obtained from Owner. The item also includes supply, installation / laying & termination of all XLPE, Cu cables of required length (as per site conditions) and size as mentioned in the standard drawings, toggle switch, cable glands and lugs etc., complete in all respect. All as per the direction and specification detailed in the document complete with tools, tackles & other necessary requirement for preparation of the coupon. The work complete in all respect shall include supply of all labour, tools etc complete as per the directions of the Site Engineer and as per drawing no. 9200-99900-404-601-06 & 9200-99900-404-607-01.

Conducting AC Interference survey in JHARKHAND

Conducting post SSD installation AC interference survey, to detect presence of any AC voltage(induced owing to proximity of any HT transmission line (33 KV and above) crossing or running parallel within a distance of 20 M from the pipeline alignment as per approved procedure. The work includes all tools, tackles, consumables etc. all complete, required for survey / test as deemed necessary and as per the directions of the site engineer / Engineer-in-Charge. Note : Post SSD installation AC interference survey shall be done at respective TLP by connecting data logger to maintain record for minimum 24 hours. The data to be submitted for each such TLP alongwith coloured graph and recommendations.

Conducting pre & post AC interference survey, to detect presence of any AC voltage(induced owing to proximity of any HT transmission line(>33kV) crossing or running parallel within a distance of 25 M from the pipeline alignment as per approved procedure. The work shall be completed in all respects including survey recommending mitigation measures & post mitigation survey. The work includes all tools, tackles, consumables etc. all complete, required for survey / test as deemed necessary and as per the directions of the site engineer / Engineer-in-Charge. Note : Post SSD installation AC interference survey shall be done at respective TLP by connecting data logger to maintain record for minimum 24 hours. The data to be submitted for each such TLP alongwith coloured graph and recommendations.

A. Test Lead Point : Supply, installation, testing & commissioning of Test Lead Point (TLP) fabricated MS Sheet (Thickness : 3 mm top/side/rear/front & 5 mm : Bottom plates) with hinged front door, Heavy Guage MS pipe 100 mm nominal diameter, Phenolic laminated terminal plate, brass terminal bolts, neoprene gasket for front door, vandal proof concealed lock, etc as per latest revision of Standard AFC drawing (9200-99900-404-603-02 : STD-483). The work includes providing requisite concrete foundation of 600 mm x 600 mm x 800 mm at site, including MS hard pipe for cable entry through foundation, erection of the TLP over concrete foundation, termination of cables to the brass terminal bolts inside TLP box, jointing the cables to pipe (using cad welding/ pin brazing technique), repairing the damage to coat & wrap (with coating repair etc.), back filling the trenches, cleaning the site, applying epoxy paint / powder coating etc. The work also includes supply, installation, laying & termination of all XLPE, Cu cables of required length (as per site conditions) and size, lugs etc. The work includes supply and fixing of a non-corrosive name plate containing the details like KM location, identification, TLP No., direction of flow, connection scheme, type etc., on the side of the TLP box, etc. The name plate shall also include the details of corrosion coupon wherever installed, all as per the direction and specification detailed in the document complete with tools, tackles & other necessary requirement. The work complete in all respects including all materials, tools, tackles, labour as per tender specifications, AFC drawings & directions of the Site Engineer/Engineer-In-Charge. B. Installation of solid state decoupling device as per specifications including terminating the cables in the TLP box with cable lugs, sealing material, laying of cable, testing & commissioning of Zinc anodes etc. all complete with required material, excavation, backfilling etc. as per specification and directions of Site Engineer/ Engineer-in-Charge. *NOTE: The SSD devices shall be provided by owner.

Zinc Anode for Hot spot protection : Supply, Installation , testing and commisioning of Zinc anode (minimum 10 Kg each) including its tail cable of size of 1c x 25 sq.mm. XLPE/ PVC insulated stranded copper cable of total length 10 meter including PVC cap, special back-fill material ( filled in cotton sack) with sealing compound complete in all respect including its excavations, back filling etc. as per specifications and drawings. The work complete in all respect shall include supply of all labour , tools etc. and shall be carried out as per the directions of the Site Engineer / Engineer-in-Charge and as per AFC drawings.

Preparation & installation of corrosion coupon from owner supplied coated pipe. which involves preparation of sample of size 2"x4", application of pipeline coating material on the coupon, soldering 6 sq. mm. cable with coupon, sealing the soldered joint with epoxy, positioning the coupon at the pipe line depth and with in a distance of 0.5 M from the pipeline inclusive of cable & terminating the cable in the TLP terminal. The corrosion coupons are to be installed with specified Test lead points for which prior approval to be obtained from Owner. The item also includes supply, installation / laying & termination of all XLPE, Cu cables of required length (as per site conditions) and size as mentioned in the standard drawings, toggle switch, cable glands and lugs etc., complete in all respect. All as per the direction and specification detailed in the document complete with tools, tackles & other necessary requirement for preparation of the coupon. The work complete in all respect shall include supply of all labour, tools etc complete as per the directions of the Site Engineer and as per drawing no. 9200-99900-404-601-06 & 9200-99900-404-607-01.

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